An explosion at an acetylene plant Thursday...

BLAST HURTS 3.

April 13, 1990

SAND SPRINGS, OKLA. — BLAST HURTS 3. An explosion at an acetylene plant Thursday injured three people and briefly knocked out electricity to 3,000 customers when pieces hit a power line, authorities said. None of the injuries was serious. The blast at the Big Three Industries plant, which had only two employees, shook surrounding buildings, witnesses said. The cause of the blast has not been undetermined.